a) If the left-hand mass is 2.0 k g ,what should the right-hand mass be so that
ID: 2278063 • Letter: A
Question
a) If the left-hand mass is 2.0kg ,what should the right-hand mass be so that it accelerates downslope at 0.64 m/s2?
b) What should the right-hand mass be so that it accelerates upslope at 0.76
m/s2?
I know the answer to part A is 5.4 kg, I'm just not sure how to manipulate the equation to solve for both of the masses in the second part...
Explanation / Answer
a)let the left hand mass be m1 = 2.0 kg and the right hand mass be m2 the acceleration of mass m2 is a = 0.64 m/s^2 we know that m1 x g = m2 x (g + a) or m2 = (m1 x g/g + a) where g = 9.8 m/s^2 b)when it accelerates upslope with acceleration a1 = 0.76 m/s^2 then the mass is m2 = (m1 x g/g - a1)
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